[jira] [Created] (TAJO-2110) Fix incorrect DateTime and remove hard coded tests

["Jinho Kim (JIRA)" <ji...@apache.org>]

Jinho Kim created TAJO-2110:
-------------------------------

             Summary: Fix incorrect DateTime and remove hard coded tests
                 Key: TAJO-2110
                 URL: https://issues.apache.org/jira/browse/TAJO-2110
             Project: Tajo
          Issue Type: Bug
          Components: Data Type, Storage, Unit Test
    Affects Versions: 0.12.0
            Reporter: Jinho Kim
            Assignee: Jinho Kim
            Priority: Critical


Currently, Most DateTime tests are not work correctly. because timezone is hardcode to the GMT for testing.
if you run CTAS, the result data will be incorrect. we should remove the hardcoded timezone in TajoTestingCluster

Here is some examples:

Example 1
{noformat}
if you run CTAS, the result data will be incorrect

default> create table test1 (col1 TIMESTAMP);
default> insert overwrite into test1 select '2016-04-04 00:00:00'::TIMESTAMP;
default> select * from test1;
col1
-------------------------------
2016-04-04 00:00:00
(1 rows, 0.057 sec, 0 B selected)
default> create table test2 as select * from test1;
[=========================================>] 100%  0.105 sec
(1 rows, 0.105 sec, 20 B inserted)
default> select * from test2;
col1
-------------------------------
2016-04-03 15:00:00
{noformat}

Example 2
{noformat}
default> select '2016-04-04 01:00:00'::TIMESTAMP - interval '1 hour';
?minus
-------------------------------
2016-04-04 09:00:00
(1 rows, 0.005 sec, 0 B selected)
{noformat}



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